Listed building consent: the drawings and documents to submit

The listed building consent documents required by almost every English council come down to six things: the application form and ownership certificate, existing drawings, proposed drawings, a written schedule of works, a photographic record of the fabric affected, and a statement of the building's significance with your justification for the change. Miss the schedule of works and you will usually get the application back as invalid. Miss the significance statement and you will get it validated, then refused.

Listed building consent sits under the Planning (Listed Buildings and Conservation Areas) Act 1990 and runs on a separate track from planning permission. It covers demolition of a listed building, and any alteration or extension that would affect its character as a building of special architectural or historic interest. Inside and out. The listing does not stop at the front door, and it can extend to objects fixed to the building and to structures within the curtilage that pre-date July 1948.

The forms and certificates

The application itself is straightforward. You need the listed building consent form, a signed ownership certificate covering everyone with an interest in the land, and a location plan at 1:1250 with the application site edged red. There is no fee for listed building consent, which surprises people who have just paid a householder planning fee for the same project.

Two practical points. If you own the building outright you sign Certificate A, and if anyone else has owned any part of the site in the last 21 days you must serve notice on them and sign the certificate that fits. And if the works also need planning permission, submit both applications together with identical drawing numbers, because two packs with different numbering is the fastest way to confuse a case officer.

Existing drawings and the level of detail expected

Existing drawings carry more weight here than in any other kind of application. The conservation officer is reading them to understand what is there before deciding whether losing it matters. A measured survey that flattens out a bowed wall or shows a modern stud partition as if it were original will undermine everything built on top of it.

Expect to provide plans, sections and elevations of the parts of the building affected, with the historic and modern fabric distinguished. Where a proposal removes material, a section through that element at a larger scale is what settles the argument.

Proposed drawings should be a direct overlay of the existing ones at the same scale, so the reader can hold one against the other. Colour-coded demolition plans help, with a key that says what each colour means.

The schedule of works, item by item

This is the document that decides most applications, and it is the one householders most often leave out. A schedule of works is a numbered list of every operation, each tied to a location, a drawing reference and a method.

A usable entry reads something like: "Item 12. Ground floor rear room. Remove modern plasterboard lining to north wall, drawing 104, retaining original lime plaster where sound. Make good in lime plaster to match, 3:1 sand to lime putty." A useless entry reads "refurbish rear room".

Write it room by room, then external elevation by external elevation. Include the works you think are trivial, because repointing and rewiring routes cause more disputes after consent than extensions do. If a method depends on what you find when you open up, say so and propose a condition requiring details to be agreed before that item starts. Officers are comfortable with that. What they cannot approve is silence.

Photographs of the fabric you are touching

Supply a photographic record, numbered and keyed to a floor plan showing where each shot was taken from. General views of each elevation, then close-ups of every element the schedule of works affects.

For anything being removed, the photographs are the only record that will survive. Where the loss is substantial, a council may condition a written and photographic record as mitigation, which is what historic building recording covers, and Historic England sets out recording at four levels of detail. Doing a proportionate version of that before you apply often strengthens the case, because it shows you have looked closely at what you are proposing to lose.

Date the photographs. Include a scale rod or a familiar object in detail shots.

Significance and justification

National planning policy requires an applicant to describe the significance of any heritage asset affected, including any contribution made by its setting, in detail proportionate to the asset's importance. That description comes first, and the justification for the works comes second. Reversing that order is the most common weakness in householder submissions.

Significance is usually broken into architectural, historic, artistic and archaeological interest. Say what the building is, when it was built, how it has changed, and which parts carry the interest. Then take each item in the schedule of works and state its effect: no harm, less than substantial harm, or substantial harm, with reasons.

The 1990 Act places a duty on the decision maker to have special regard to preserving the building and its features of special interest. A Heritage Statement that engages with that duty directly, rather than describing the scheme in marketing language, gives the officer something to work with. For a larger scheme this often sits alongside a Planning Statement dealing with the wider policy tests.

An illustrative example. A Grade II farmhouse with a 1970s flat-roofed kitchen extension: the extension has no significance, the rubble stone wall it butts against does, and the justification therefore concentrates on how the new structure fixes to that wall and how the old scar will be made good.

Windows, joinery and the details that get queried

Window applications fail on drawings more than on principle. If you are replacing or altering windows, provide existing and proposed elevations, a horizontal and vertical section through the frame at 1:5 or larger, glazing bar profiles drawn full size, and a note on glass type and putty or bead detail.

Slim double glazing in historic frames is accepted by some authorities and refused by others, and the answer often turns on sightlines and whether the original glass survives. Set out what the existing frames are, their condition, and why repair is or is not possible. A joiner's condition report on a window-by-window basis is worth more than a general assertion that the frames are beyond saving.

The same approach covers doors, staircases, skirtings and fireplaces. Draw the profile.

Where consent is needed as well as permission

Listed building consent and planning permission are different consents with different tests, and one does not imply the other. An extension to a listed dwelling normally needs both. Internal alterations usually need only listed building consent. Works to a boundary wall may need consent if the wall is curtilage listed.

Permitted development rights still exist for listed dwellings in some cases, but they never remove the need for listed building consent, so a garden room that needs no planning permission can still need consent if it affects the setting of the listed building or involves a curtilage structure. Separately, if the building is also in a conservation area, tree works and demolition bring their own notification requirements.

Work through the consents before you fix the design. Then assemble the pack in one go, because a council that receives drawings on Monday and a schedule of works three weeks later will start the clock from the later date.

This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it.

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